Sylvania



' 2 Sheet-Sheet 1.

A. HEUPEL & J. REINHARDT. LOCOMOTIVE STEAM ENGINE.

No.79,341. Patented June 30, 1868.

' 2 Sheets-Sheet 2. A; HEUPEL 8; J. REINHARDT. LOCOMOTIVE STEAM ENGINE.

No. 79,341. I Patented June 30, 1868.

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Letters Patent No. 79,341, dated June 30, 1868; antedated J1me"1 8," 1868.

IMPROVEMENT IN LOGOMOTIVE'STEAM-ENGINES,

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TO ALL WHOM IT MAY corrosnn: 7

Be it-known that we, Amazon Hsnurm. and Jone: Rnmnsnnr, both of the city and county of Philadelphia.

and State of Pennsylvania, have invented a new and useful Improvement in Steam-Engines and w e' do hereby declarethe following to be a-full, clear, and exactidescription of the same, 'referencebeing had'to the accompanying drawings, which are made a part of this'specification. I

' The subject of this invention-is a steam-engine in which the stroke of the valves is made variable by-means of a wheel, which isadjustably mounted upon the driving-shaft, and which ectuates the connections through which motion is imparted to the valve-rods.

The accompanying drawings represent our invention as applied to a locomotivc'steam-engi-ne, of which- Figure his a horizontal section, presenting a. topview of the shaded. parts of fig. 2.

Figure 2 isa side elevation, the near driving-wheel and a portion of the frame being removed.

Figure 3 is adetached plan view of a portion of the driving-shaft, and a horizontal s'ectional'v'ieiv .of the attached valve-driving wheel and appurtenances thereof, the pl ane of section being shown by the lineyy, fig. 4"

' Figure 4 is a sectional elevntionof theparts shown in fig. 3, the plane of section being indicated'by the lines 2 z.

Similar letters of reference indicate corresponding parts in the several figures.

A may represent the boiler of ti locomotive-engine; B,'the fire-box; O O, the driving-wheelsupon the'main shaft D, and E'the leading-wheels. 'F F are the cylinders, and G G the steam-regulating slide-valves, the boxes, G, of the latter sin-mounting the cylinders 'in customary manner. The piston-rods F F are connected to the driving-wheels C C in the ordinary way. As the valve-connections, or the parts more directly concerned in operating theivalyes, constitute the subject of our invention, we will confine the ensuing description thereto, it being of-course understood that the otherparts of the machinery are merely represented by way of affording a complete illustration of a; mode of carrying the invention into efl'ect.

Each valve-rod, H is suitably jointed to a rocking-elbow lever, I, turning on a vertical spiudle or axis on the frame, and the two levers, II, are connected by the rods J J, respectivcly,.with the vibrating-levers K K. The end of each lever K is formed with a jaw or opening, it, fig. 3,which receives a knob or cylindrical projection, Z, on -a reciprocating slide, L, These slides are arranged as shown in fig. 1, the one being at the top and the other at the front of the wheel or disk M, upon the main shaft D, Each slide L carries a pair'of friction-rollers, L L, working at the opposite sides bf and in contact with the transversely circular rim of the wheel'M. The wheel Mbeing held in an oblique position upon the shaft D,.servcs, when rotating, to impart a vibrating mot-ion to the levers K K, through thc medium of the wheels L L and reciprocating slidesiL L; and said levers K K. transmit the'dcsired movement to the valves-G G, through the connections J I H. I It is obvi* one that the deviation of the wheel M from a plane at right angles to the axis ofthe shaft D determines the stroke and'the velocity of the slides L, and consequently of the valves G. In order town)? the degree of I obliquity of the wheel M, and hence to change the stroke of the valves to any dcs'iredextent, we have-provided means for adjusting said wheel and looking it in the desired working position, as we will now describe.

in 112 (see figs. 3 and 4) are screws passing through the hob of wheel M at diametrically opposite points, and into apertures at opposite'points on the shaftD, ,assho wn in fig.-3. These screws in m, while causing the wheel M to rotate with the shaft D, form 'ccntres'upon which said wheel, when not otherwise held,may be turned to any degree of obliquity in relation to the shaft D. The wheel M is locked in position relcased, and adjn'st ed by the engineer or other attendant, by means of the lever N and trigger O, which areirespe'ctively connected with the sliding collars Q and P on theshaft 1D. -:While the collars and maybe sliddcn endways on the shaft D, they are caused to rotate with said shaft by' the spline d. The collars Pond Q are formed with circum fm'cntia'l grooves, 12 q, fig; 3, in which test forks n o,v which vibrate upon vertical pivots or axes at, n o. The fork 7b is connected to the lever N by means of the rods a? n anddever n. The fork o isconnected to the trigger O by the rods o o o and lever 0 i The wheel M is connected to the collar P by'means of an arm, R, jointed or pivoted at both its points of attachment. When the collar P is locked so as to be held against endwise movement upon theshaft D, the arm R holds the wheel M rigidly in position, and thus maintains the obliquity of position under which the wheel. is

to operate. The collar P is held against endwise movement by the engagement of the key S with one of the notches d, (see fig. 3,) but whenit is desired to give the wheel Manew position, in order to change the stroke of the valve as aforesaid, the key SJnay be withdrawn from the notch d by retracting the collar Q, or, in other words, drawing the same away from the collar P, thereby-causing the oblique end of the bar T, which is made -fast tosaid collar Q, to act upon the key S, and. disengage it from the notch ,in the shaft, The key S having been disengaged from the shaft D by pressure upon the trigger 0, both the trigger and lover N are pushed or pulled simultaneously so as to move the collars from or toward the wheel M, and thus turn said wheel into the desired position. When releasing the lever N and trigger O, the latter is actuated by the spring n, and the consequent movement of the collar Q and oblique-ended bar '1, replaces the key S in one of the notches, d,

- and thus locks the wheel M in its 'new position, the lever Nbeing held immovably by the engagement of the dog it with the stationary rack U Having thus described our invention, what we claim asv new herein, and desire to secure by Letters Pateat, is-

1. A valve-regulating wheeler disk, M, in combination withthe shaft D, having notches, cl','movable collars P Q, key S, and bar T, all arranged and operating substantially as herein set forth. V

2. The combination, with the movable collars P Q, of the releasing-trigger O, lever N, and forksn o, with their described connections, substantially as herein set forth.

I 3. The slides L L, friction rollers L? L, and vibrating-levers K K, in combination with the wheel M, for communicating motion to the -valves, substantially as described,

To the above specification of our improvement in steam-engines, we have signed our hands,'this 25thday oi October, 1867'.

ANTON HAEUPEL,

JOHN REINHA'RDT.

Witnesses;

CHARLES D. Sm'r'n, J. E. M. Bowen. 

